1. Bowman, S. A., Clemens, J. C., Friday, J. E., Thoerig, R. C., & Moshfegh, A. J. (2014). Food Patterns Equivalents Database 2005-06: Methodology and User Guide. In: Food Surveys Research Group, Beltsville Human Nutrition Research Center, Agricultural Research Service. U.S. Department of Agriculture, Beltsville, Maryland. http://www.ars.usda.gov/SP2UserFiles/Place/80400530/pdf/fped/FPED_0506.pdf . Accessed April 4, 2015.
2. Centers for Disease Control and Prevention, & National Center for Health Statistics. (2008). Food Frequency Questionnaire—Output from DietCalc Software. http://wwwn.cdc.gov/nchs/nhanes/2005-2006/FFQDC_D.htm . Accessed August 16, 2014.
3. Centers for Disease Control and Prevention, & National Center for Health Statistics. (2009). NHANES 2007–2008 Public Data General Release File Documentation. http://www.cdc.gov/nchs/nhanes/nhanes2007-2008/generaldoc_e.htm . Accessed July 14, 2015.
4. Centers for Disease Control and Prevention, & National Center for Health Statistics. (2014). NHANES Web Tutorial Frequently Asked Questions (FAQs). http://www.cdc.gov/nchs/tutorials/nhanes/faqs.htm . Accessed July 14, 2015.
5. Chen, A., Xu, F., Xie, C., Wu, T., Vuong, A. M., Miao, M., et al. (2015). Gestational Weight Gain Trend and Population Attributable Risks of Adverse Fetal Growth Outcomes in Ohio. Paediatric and Perinatal Epidemiology, 29(4), 346–350.